标题： 玻色-爱因斯坦凝聚体在弯曲势中的动力学和输运 显示英文标题

标题： Dynamics and transport of Bose-Einstein condensates in bent potentials

摘要： 弯曲几何中玻色子的动力学最近在量子多体物理领域引起了广泛关注。 利用定制捕获景观的最新实验进展，我们研究了二维弯曲捕获势中弱相互作用玻色子的量子输运，表明仅凭几何结构就可以作为隧穿动力学的精确控制旋钮。 使用时间自适应多体模拟，并结合平均场分析和精确对角化，我们分析了受限于弯曲势的玻色子的静态和动态特性。 我们揭示了初始直线通道的弯曲如何引发从密度局域到非局域的转变，并驱动基态中相关性的形成。 在动力学中，弯曲起到可调谐屏障的作用，实现了可控的隧穿：弱曲率允许通过弯曲的相干隧穿，而更强的弯曲则抑制输运并增强自束缚。 隧穿速率可以通过几何参数精确调节，确立弯曲陷阱作为几何控制量子输运的多功能平台。 显示英文摘要

摘要： The dynamics of bosons in curved geometries have recently attracted significant interest in quantum many-body physics. Leveraging recent experimental advances in tailored trapping landscapes, we investigate the quantum transport of weakly interacting bosons in two-dimensional bent trapping potentials, showing that geometry alone can serve as a precise control knob for tunneling dynamics. Using time-adaptive many-body simulations, complemented by mean-field analysis and exact diagonalization, we analyze both static and dynamical properties of bosons confined in the bent potential. We reveal how bending an initially straight channel induces a transition from density localization to delocalization and drives the buildup of correlations in the ground state. In the dynamics, the bent acts as a tunable barrier that enables controllable tunneling: weak curvature allows coherent tunnelling across the bend, while stronger bent suppresses transport and enhances self-trapping. The tunneling rate can be precisely tuned by geometric parameters, establishing bent traps as versatile platforms for geometry-controlled quantum transport.